WLAN-3G Interworking
for
Future High Data Rate Networks
Mohammad Abualreesh
Mohammad.Abualreesh@hut.fi
Master Thesis Presentation
Communication Lab.
Agenda
•
•
•
•
•
•
•
Background
Scope & Method
WLAN-3G Interworking General Overview
WLAN-3G Interworking Architectural Methods
Performance Evaluation for WLAN-3G Interworking
Methods
Summary & Conclusion
Q&A
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
2
Background
• Huge expansion in wireless communication
systems:
– Mobile communication systems (1G,2G, 2.5G, 3G)
High mobility but low data rate (< 2 Mbps)
– WLAN, WAN, WPAN … (IEEE 802.11x series)
High data rate ( 11 Mbps, 54 Mbps, 100 Mbps) but
low mobility
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
3
Background
• However, there is a need for public wireless
access: to cover the increasing demand for
high data-intensive applications and to enable
smooth online access to corporate data
services in hot spots
• How to supply such need?
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
4
Background
• Possible solution= 3G+WLAN
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
5
Scope & Method
• The main focus is to present and describe
WLAN-3G interworking: aims, features,
architectural methods, and development for
future high data rate networks.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
6
Scope & Method
• In addition, the research provides an
analytical model and a simulated model that
can be used for evaluating the performance of
the methods which are used to implement
WLAN-3G interworking.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
7
WLAN-3G Interworking General
Overview
• WLAN-3G Interworking is used generally to
refer to the interworking between 3G system
and WLAN family of standards.
• This means combining or integrating both of
WLAN and 3G technologies altogether to
utilize the benefits of them.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
8
WLAN-3G Interworking General
Overview
• WLAN can provide high data rates capabilities
and 3G can provide high mobility capabilities.
Thus, the new WLAN-3G interworking system
will combine both of these key capabilities:
high data rate and high mobility together.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
9
Big Picture for WLAN-3G Interworking
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
10
WLAN-3G Interworking
Architectural Methods
• The main architectural methods which are
proposed for integrating WLAN and 3G
technologies together are:
The mobile IP architectural method
The gateway architectural method
The emulator architectural method
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
11
The Mobile IP Architectural
Method
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
12
The Gateway Architectural
Method
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
13
The Emulator Architectural
Method
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
14
Performance Evaluation for
WLAN-3G Interworking Methods
• Analatical Model
• Simulated Model
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
15
Performance Metric
• Handover delay: is the time between the
initialization and the end of the handover
between BS and AP.
• It is the time the wireless mobile user (MS)
needs to wait until the handover process is
completed among BS-AP
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
16
Analytical Model
• The handover delay can be formulated as:
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
17
Analytical Model Result
• The handover processing time is high in the mobile
•
•
•
IP.
The gateway method has lower handover processing
time due to gateway usage.
The emulator method has the lowest handover
processing time since WLAN is a part from 3G
network like any cell there.
Therefore, the mobile IP method has high handover
delay, the gateway method has lower handover
delay, and the emulator method has the lowest
handover delay.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
18
Simulated Model
• Matlab simulation
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
19
Matlab Simulation
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
20
Simulation Result
Distribution of users among UMTS-WLAN coverasge areas
2000
UMTS users
WLAN users
1800
1600
1400
y
1200
1000
800
600
400
200
0
7/24/2016
0
500
1000
1500
x Abualreesh
Mohammad
Master Thesis Presentation
2000
21
Handover Delay vs. Number of Users
UMTS-WLAN Handover Delay
90
MobileIP
Gateway
Emulator
Handover delay (ms)
80
70
60
50
40
30
660
7/24/2016
680
700
760
740
720
Number of Users
Mohammad Abualreesh
Master Thesis Presentation
780
800
820
22
Simulation Result
• From simulation result, it is clear that the
mobile IP method has high handover delay,
the gateway method has lower handover
delay, and the emulator method has the
lowest handover delay.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
23
Some Literature Result
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
24
Summary & Conclusions
• The importance of UMTS-WLAN interworking comes
•
•
to supply the need for public wireless access: to
cover the demand for high data-intensive
applications and to enable smooth online access to
corporate data services in hot spots.
Different UMTS-WLAN interworking architecture
methodologies are introduced and studied.
The main interworking methods are: the mobile IP
method, the gateway method, and the emulator
method.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
25
Summary & Conclusions
• Theses methods have been evaluated analytically
•
and via simulation; based on handover delay.
As a comparison, based on consequences of the
analytical and simulated models, the mobile IP
method has the highest handover delay, while
gateway method has lower handover delay and
emulator method has the lowest.
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
26
Q&A
• Any question or comment?
• Thank You!
• For more details, please refer to the thesis!
7/24/2016
Mohammad Abualreesh
Master Thesis Presentation
27